特种经济动物营养与饲料 SPECIAL ECONOMIC ANIMAL NUTRITION AND FEED

饲粮胆汁酸水平对育成期貉生长性能、氮代谢及血清生化指标的影响

  • 潘素敏 ,
  • 申树瑞 ,
  • 张海华 ,
  • 刘欣 ,
  • 孔令钰 ,
  • 魏雪
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  • 河北科技师范学院动物科技学院, 河北省特色动物种质资源挖掘与创新重点实验室, 秦皇岛 066000
潘素敏(1982-),女,河北抚宁人,硕士研究生,研究方向为犬科病毒病与免疫。E-mail:pansumin1105@126.com

收稿日期: 2020-10-28

  网络出版日期: 2021-05-14

基金资助

河北省高校百名优秀创新人才(SLRC2019048);河北省科技厅项目(C2019407111);河北省青年拔尖人才计划(180443);河北科技师范学院博士启动经费(2018YB018)

Effects of Dietary Bile Acid Level on Growth Performance, Nitrogen Metabolism and Serum Biochemical Indexes of Growing Raccoon Dogs

  • PAN Sumin ,
  • SHEN Shurui ,
  • ZHANG Haihua ,
  • LIU Xin ,
  • KONG Lingyu ,
  • WEI Xue
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  • Hebei Key Laboratory of Specialty Animal Germplasm Resources Exploration and Innovation, College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China

Received date: 2020-10-28

  Online published: 2021-05-14

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摘要

本试验旨在研究饲粮胆汁酸水平对育成期貉生长性能、营养物质表观消化率、氮代谢及血清生化指标的影响。选取50日龄公貉64只,随机分成4组,每组16个重复,每个重复1只。4组分别饲喂在基础饲粮中添加0(Ⅰ组)、100(Ⅱ组)、300(Ⅲ组)、500 mg/kg胆汁酸(Ⅳ组)的饲粮。正试期90 d。结果表明:1)Ⅱ组的末重显著高于Ⅰ组(P<0.05);Ⅱ组的料重比显著低于Ⅰ组(P<0.05)。2)Ⅱ组的干物质表观消化率显著高于Ⅳ组(P<0.05);Ⅰ组的粗蛋白质表观消化率显著高于Ⅳ组(P<0.05),Ⅱ组的粗蛋白质表观消化率极显著高于Ⅳ组(P<0.01);Ⅰ组的粗脂肪表观消化率显著低于Ⅱ、Ⅲ和Ⅳ组(P<0.05)。3)Ⅱ组和Ⅰ组的粪氮排出量显著低于Ⅳ组(P<0.05);Ⅱ组的氮沉积显著高于Ⅳ组(P<0.05)。4)Ⅳ组的血清中尿素(UREA)含量极显著高于Ⅰ组(P<0.01),Ⅲ组显著高于Ⅰ组(P<0.05),Ⅳ组显著高于Ⅱ组(P<0.05);Ⅱ、Ⅲ、Ⅳ组血清总蛋白(TP)和白蛋白(ALB)含量均极显著高于Ⅰ组(P<0.01);Ⅳ组血清谷丙转氨酶(ALT)活性极显著高于Ⅰ组(P<0.01),Ⅳ组显著高于Ⅱ、Ⅲ组(P<0.05);Ⅲ、Ⅳ组血清碱性磷酸酶(ALP)活性极显著高于Ⅰ组(P<0.01),Ⅳ组显著高于Ⅱ组(P<0.05);Ⅳ组血清葡萄糖(GLU)含量极显著高于Ⅰ组(P<0.01);Ⅲ、Ⅳ组血清高密度脂蛋白(HDL)含量极显著高于Ⅰ组(P<0.01),Ⅱ组显著高于Ⅰ组(P<0.05),Ⅳ组显著高于Ⅱ组(P<0.05);Ⅳ组血清低密度脂蛋白(LDL)含量极显著高于Ⅰ组(P<0.01),显著高于Ⅱ组(P<0.05);Ⅲ、Ⅳ组血清胆固醇(CHOL)含量极显著高于Ⅰ组(P<0.01),Ⅱ组显著高于Ⅰ组(P<0.05),Ⅳ组显著高于Ⅱ组(P<0.05);Ⅳ组血清甘油三酯(TG)含量极显著高于Ⅰ、Ⅱ组(P<0.01)。综上所述,本试验条件下,饲粮胆汁酸添加水平在100 mg/kg时,貉的生长性能、干物质表观消化率、粗蛋白质表观消化率、粗脂肪表观消化率和氮沉积较高,动物机体对蛋白质和脂肪吸收较好,对貉的生长更有利。

本文引用格式

潘素敏 , 申树瑞 , 张海华 , 刘欣 , 孔令钰 , 魏雪 . 饲粮胆汁酸水平对育成期貉生长性能、氮代谢及血清生化指标的影响[J]. 动物营养学报, 2021 , 33(5) : 2887 -2895 . DOI: 10.3969/j.issn.1006-267x.2021.05.046

Abstract

The purpose of this study was to investigate the effects of dietary bile acid level on the growth performance, nutrient apparent digestibilites, nitrogen metabolism and serum biochemical indexes of raccoon dogs during the growing period. A total of 64 male raccoon dogs aged 50 days were selected and randomly divided into 4 groups with 16 repetitions in each group and 1 raccoon dog in each repetition. Raccoon dogs in the 4 groups were fed a basal diet supplemented with bile acid levels of 0 (group Ⅰ), 100 (group Ⅱ), 300 (group Ⅲ), 500 mg/kg bile acids (group Ⅳ), respectively. The trial lasted for 90 days. The results showed as follows:1) the final weight of group Ⅱ was significantly higher than that of group Ⅰ (P<0.05). The material-to-weight ratio of group Ⅱ was significantly lower than that of group Ⅰ (P<0.05). 2) The dry matter apparent digestibility of group Ⅱ was significantly higher than that of group Ⅳ (P<0.05). The crude protein apparent digestibility of group Ⅰ was significantly higher than that of group Ⅳ (P<0.05), and the crude protein digestibility of group Ⅱ was significantly higher than that of group Ⅳ (P<0.01). The ether extract apparent digestibility of group Ⅰ was significantly lower than that of group Ⅱ, group Ⅲ and group Ⅳ (P<0.05). 3) Fecal nitrogen output of group Ⅱ and group Ⅰ was significantly lower than that of group Ⅳ (P<0.05). The nitrogen deposition of group Ⅱ was significantly higher than that of group Ⅳ (P<0.05). 4) The serum urea content of group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), group Ⅲ was significantly higher than group Ⅰ (P<0.05), and group Ⅳ was significantly higher than group Ⅱ (P<0.05). The serum total protein and albumin contents of group Ⅱ, group Ⅲ and group Ⅳ were significantly higher than those of group Ⅰ (P<0.01). The serum alanine transaminase activity of group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), and that of group Ⅳ was significantly higher than that of group Ⅱ and group Ⅲ (P<0.05). Serum alkaline phosphatase activity of group Ⅲ and group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), and group Ⅳ was significantly higher than group Ⅱ (P<0.05). The serum glucose content of group Ⅳ was significantly higher than that of group Ⅰ (P<0.01). The serum high-density lipoprotein content of group Ⅲ and group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), group Ⅱ was significantly higher than group Ⅰ (P<0.05), and group Ⅳ was significantly higher than group Ⅱ (P<0.05). The serum low density lipoprotein content of group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), significantly higher than that of group Ⅱ (P<0.05). The serum cholesterol content of group Ⅲ and group Ⅳ was significantly higher than that of group Ⅰ (P<0.01), group Ⅱ was significantly higher than group Ⅰ (P<0.05), and group Ⅳ was significantly higher than group Ⅱ (P<0.05). Serum triglyceride content of group Ⅳ was significantly higher than that of group Ⅰ and group Ⅱ (P<0.01). Under the conditions of this experiment, the growth performance, dry matter apparent digestibility, crude protein apparent digestibility, ether extract apparent digestibility and nitrogen deposition of raccoon dogs are higher when the dietary bile acid addition level is 100 mg/kg. At this level, the animal body has better absorption of protein and fat, which is more beneficial to the growth of raccoon dogs.

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